Chat ZaloLightweight alloy frame
A hydroformed alloy frame made in Polygon's own factory: light, durable and easy to handle.
Polygon · Cross Country
Polygon CASCADE 4
An easy-going entry-level mountain bike
- MY26
- XC hardtail
- ALX alloy frame
- Shimano CUES 1x9
- Hydraulic disc brakes
Retail price12.500.000₫
- Genuine Polygon bike, distributed by Spinlab
- Free shipping on orders from 2,000,000₫
- Free size advice via our hotline
An easy-going entry-level mountain bike
The 2026 Cascade 4 is for riders who want to go beyond the tarmac: ALX alloy frame, SR Suntour XCM 32 fork with 100mm travel, a simple Shimano CUES 1x9-speed drivetrain (11-46T cassette) and Shimano MT200 hydraulic disc brakes. Size XS has 27.5" wheels; sizes S, M, L and XL have 29" wheels.
Versions in the Cascade range: CASCADE 5 · CASCADE 4 · CASCADE 3
Key features
100mm suspension fork
An SR Suntour fork with 100mm travel smooths out dirt roads, gravel and city potholes.
Disc brakes
Consistent braking power even in the wet, for confident descents.
29" wheels (size XS: 27.5")
Sizes S to XL roll smoothly over obstacles on 29" wheels; size XS uses 27.5" wheels to suit smaller riders.
Technical specifications
Frameset
- Frame
- ALX XC SPORT FRAME
- Fork
- SUNTOUR XCM 32 100MM TRAVEL
- Size
- XS (27.5") / S, M, L, XL (29")
- Frame Color
- GREEN LATTE / CHARCOAL CHROME
- Decal Color
- WHITE - BLACK
Drivetrain
- Shifter
- SHIMANO CUES SL-U4010, 1x9 RAPID FIRE
- Crank
- PROWHEEL C10Y-NW, 36T
- Cassette
- SHIMANO CUES CS-LG300, 11-46T
- Rear Derailleur
- SHIMANO CUES RD-U4000GS
- BB
- SQUARE BB, 68mm
- Chain
- KMC X-GLIDE
- Pedal
- ONE PIECE PP BODY
Cockpit
- Saddle
- BLACK STEEL ø7mm
- Seatpost
- POLYGON SPORT 27.2 x 350mm
- Handlebar
- POLYGON SPORT W: 700MM, B: 31.8MM, R/D: 20MM
- Handlestem
- POLYGON SPORT E: 40MM, B: 31.8MM, R/D: 7
- Headset
- ZERO STACK W/ SEALED BEARING, ZS 44/28.6 | ZS 44/30
Wheel & Tire
- Wheel Set
- ALLOY DOUBLE WALL
- Wheel Size
- 27.5" (XS) / 29" (S–XL)
- Tire
- 27.5" (XS) / 29" (S–XL) x 2.25"
- Rim
- ALLOY DOUBLE WALL
- Hub
- F: ALLOY, 100mm 32H QR / R: ALLOY, 135mm 32H QR
- Spokes
- 27.5": 14G STAINLESS NDS:270mm / DS:272mm · 29": 14G STAINLESS NDS:290mm / DS:292mm, 12mm NIPPLE BRASS
Brakes
- Brake lever
- SHIMANO MT200
- Brake Caliper
- SHIMANO MT200 HYDRAULIC DISC
- Rotor
- SHIMANO SM-RT10, 160mm
Specifications may change between shipments. Please contact Spinlab to confirm the bike's configuration in Vietnam.
Frame geometry
| Specifications | XS (27.5″) | S (29″) | M (29″) | L (29″) | XL (29″) |
|---|---|---|---|---|---|
| Height | 145-155 | 155-165 | 165-175 | 175-185 | 185-195 |
| Seat Tube Length (A) | 360 | 390 | 430 | 460 | 491 |
| Seat Tube Angle (B) | 75 | 75 | 75 | 75 | 75 |
| Effective Seat Tube Angle (C) | 75 | 75 | 75 | 74 | 75 |
| Head Tube Length (D) | 110 | 90 | 95 | 100 | 110 |
| Head Tube Angle (E) | 68 | 67 | 68 | 68 | 68 |
| Effective Top Tube (F) | 538 | 566 | 585 | 604 | 624 |
| BB Height (G) | 310 | 304 | 303 | 303 | 304 |
| BB Drop (H) | -45 | -69 | -69 | -69 | -69 |
| Chainstay Length (I) | 440 | 455 | 454 | 454 | 455 |
| Wheelbase (J) | 1085 | 1122 | 1142 | 1161 | 1182 |
| Reach (K) | 380 | 400 | 420 | 440 | 453 |
| Stack (L) | 596 | 620 | 624 | 629 | 638 |
| Standover Height (M) | 684 | 709 | 736 | 759 | 780 |
The selected size column is highlighted. Figures from Polygon Bikes.
FAQ
How do I choose a size?
Refer to the “Rider height” row in the Frame geometry table. If your height falls between two sizes, contact Spinlab for advice based on your riding position and needs.
What warranty does the bike have?
Genuine Polygon bikes distributed by Spinlab are covered by Polygon's warranty policy. Call our hotline for details of conditions and duration.
Can I upgrade components?
Yes. Contact Spinlab for advice on suitable upgrades, such as Vittoria tyres or Emume handlebar tape.
